The S3900-48T6S-R is an L2+ managed stackable switch designed for SMBs, enterprises, midmarket, and branch office networks, offering a lower total cost of ownership. It features 48x 10/100/1000M RJ45 ports and 6x 10Gb SFP+ uplinks, delivering a switching capacity of 216 Gbps and a forwarding rate of 162 Mpps. With dual redundant power supplies and a dual-fan design, the switch ensures reliable, uninterrupted operation even during power supply failures.
The switch supports stacking technology, which simplifies operations by interconnecting up to 8 switches that can be managed as a single logical device. It supports advanced features such as OSPF, Voice VLAN, robust QoS, Static Routing, and IPv6. Additionally, it offers simple device and network management through a Command-Line Interface (CLI) and an intuitive on-box web UI.
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Product Highlights
48-Port Gigabit Ethernet L2+ Switch, 48x Gigabit RJ45, with 6x 10Gb SFP+ Uplinks, Stackable Switch
Software Spotlights
Redundant power supplies
Up to 8 units stacking
IEEE 802.3ad Link Aggregation (LACP)
Graceful protocol restart (OSPF)
Virtual router redundancy protocol (VRRP)
Rapid link detection protocol (RLDP)
Rapid Ethernet uplink protection protocol (REUP)
Bidirectional forwarding detection (BFD)
Ethernet Ring Protection Switching (ERPS)
The spanning tree protocols (STPs)
IEEE 802.1x, RADIUS, TACACS+, Local Authentication
Port Security, IP+MAC+port binding
Port-based Authentication
Mac-based Authentication HTTPS and SSL (v3)
DHCP Snooping
IP Source Guard (IPSG)
DoS Protection
SNMP V1/V2/V3, HTTP, log
Remote monitoring (RMON)
Syslog, Web-based management, Telnet, SSH
Command-Line Interface (CLI)
LLDP (802.1ab)
Network Monitoring through Sampled Flow (sFlow)
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1+1 Redundant PSUs ensure the continuous normal operation of switch.
LACP can control the bundling of several physical ports together to form a single logical channel, boosting bandwidth and network reliability without altering the infrastructure.
Voice VLAN improves voice traffic transmission priority and guarantees voice quality by assigning voice traffic to a dedicated VLAN without competing with other traffic.
8 QoS queues per switch port for prioritising data, voice, and video traffic to reduce packet loss, latency, and jitter on a network.
Dimensions (HxWxD) | 1.73''x17.32''x11.02'' (44x440x280mm) | 1.75''x17.44''x10.55'' (44.5x443x268mm) | 1.71''x17.32''x8.66'' (43.5x440x220mm) | 1.72''x17.32''x13.68'' (43.6x440x347.6mm) |
Weight | 10.8 lbs (4.9kg) | 8.28 lbs (3.76 kg) | 6.17 lbs (2.8kg) | 11.53 lbs (5.23kg) |
Ports | 48x 10/100/1000BASE-T RJ45 6x 10G SFP+ | 48x 10/100/1000BASE-T 4x 1G SFP | 48x 10/100/1000BASE-T 4x 2.5G SFP | 48x 10/100/1000BASE-T RJ45 4x 1G/10G SFP+ |
Switch Chip | Realtek RTL9301 | Broadcom BCM56152 | Broadcom BCM53547 | Broadcom BCM56150 |
Switching Capacity | 216 Gbps | 104 Gbps | 116 Gbps | 176 Gbps |
Forwarding Rate | 162 Mpps | 78 Mpps | 86.30 Mpps | 132 Mpps |
Power Supplies | 2 (1+1 Redundancy) Built-in, AC | 1 Built-in, AC | 1 Built-in, AC | 2 (1+1 Redundancy) Hot-swappable, AC |
Fans | 2 Built-in, Left-to-Right | 1 Built-in, Right-to-Left | 2 Built-in, Left-to-Right | 1 Built-in, Right-to-Left |
Max. Power Consumption | 51W | 40W | 30W | 48W |
Stacking | 8 (same model) | 4 (same model) | — | 4 (same model) |
Voice VLAN | Yes | — | Yes | — |
(44.5x443x268mm)
6x 10G SFP+
4x 1G SFP
4x 2.5G SFP
4x 1G/10G SFP+
Yes
Yes
